[winswitch] Warning: delayed region timeout

[Dušan Vejnovič]

I'm writing my own client in Java. Client works first 5 second OK. After 
that I can't get any draw packet from the server, but got the message:

Warning: delayed region timeout
region is 15 seconds old, will retry - bad connection?

I'm doing ping from client to server every 5 seconds and answering on 
ping from server with ping echo.
HTML5 work without problem.

In client I use two threads:
- the first thread is for communication with the server
- the second one is for sending ping data to the server

Xpra is running on Debian 9.

Bye
Dušan